Zilla Decor Rock Den Hideout for TerrariumsThe Zilla decorative Rock Den is a realistic looking rock formation that features space for basking and climbing, as well as a dark, cool burrowing area to hide and sleep. Each shelter is made with non porous exterior surfaces that are easy to clean with soapy water. They will not retain water or promote bacteria so terrariums stay healthier and smell fresher longer. Safe for both aquatic and terrestrial environments. Life Like Texture And Design